To enhance the information provided. This is under AXR function in the Operating system.
This shows some code snippets: https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.2.0/com.ibm.zos.v2r2.ieaa800/rxxfction.htm System REXX is a z/OS® component that allows REXX execs to be executed outside of conventional TSO/E and Batch environments. REXX has long been considered one of the fastest development languages for system exit and utilities work on z/OS. The possibilities for exploiting REXX code through the use of System REXX are vast, whether to provide operator assists or to provide an easy way to process files and strings. The System REXX environment provides a function package that allows a REXX exec to invoke system commands and to return results back to the invoker in a variety of ways. System REXX execs may be initiated through an assembler macro interface called AXREXX or through an operator command. There are two different System REXX environments supported: TSO=NO TSO=YES In both environments, the exec runs in problem state, key 8, in an APF authorized address space. Any modules that are loaded, linked or attached from the exec, must reside in an APF authorized library; otherwise, a X'306' abend occurs. In both cases, the REXX exec runs under the enclave of the AXREXX invoker when the invoker can be classified; otherwise, the exec runs under the enclave of AXR. There can be up to 64 REXX worker tasks running TSO=NO execs and up to 8 TSO server address spaces running TSO=YES execs. If a worker task is not available for an inbound TSO=NO request, or if a TSO server address space is not available for a TSO=YES request, the request is queued and the requestor is suspended if SYNC=YES is specified. The order in which System REXX processes queued requests may not be in the same order that the requests have been submitted. AXREXX invokers that use SYNC=YES should consider the potentially long wait time. Lizette > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of > Allan Staller > Sent: Friday, August 24, 2018 4:55 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: SYSREXX PDS size > > "System Rexx" Came in about z/OS 1.9 IIRC. A set of rexx api's and > environments that allow for things like issuing commands, retrieving command > output, etc. > > -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of > Jesse 1 Robinson > Sent: Thursday, August 23, 2018 11:02 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: SYSREXX PDS size > > Could I ask what 'SYSREXX' means? At first I thought this referred simply to > the standard common set of REXX execs that users allocate at logon. Is it > something else? > > . > . > J.O.Skip Robinson > Southern California Edison Company > Electric Dragon Team Paddler > SHARE MVS Program Co-Manager > 323-715-0595 Mobile > 626-543-6132 Office ⇐=== NEW > robin...@sce.com > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Steve Beaver > Sent: Thursday, August 23, 2018 8:45 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: (External):Re: SYSREXX PDS size > > It all depends on the concatenation > > Start ISRDDN and see how it reacts > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Carmen Vitullo > Sent: Thursday, August 23, 2018 9:56 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: SYSREXX PDS size > > our system rexx library is a library PDS-E, VB 255, I think the guy who set > it up said FB 80 would not work,checking the fine manual he was correct, VB > 255 is required > > > > Carmen Vitullo > > ----- Original Message ----- > > From: "Carmen Vitullo" <cvitu...@hughes.net> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Thursday, August 23, 2018 9:53:47 AM > Subject: Re: SYSREXX PDS size > > let me check, from what I recall sysrexx pds must be vb 255 :( > > > Carmen Vitullo > > ----- Original Message ----- > > From: "Tony Thigpen" <t...@vse2pdf.com> > To: IBM-MAIN@LISTSERV.UA.EDU > Sent: Thursday, August 23, 2018 9:42:52 AM > Subject: SYSREXX PDS size > > Our SYSREXX PDS is currently defined as VB 255. We had a system problem this > week that one Sysprog thinks that the the VB 255 aggravated the problem and > is insisting that we change it to FB 80. I disagree, but I thought I would > though it out to the list for views. > > Views? > > -- > Tony Thigpen > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ::DISCLAIMER:: > ----------------------------------------------------------------------------- > ----------------------------------------------------------------------------- > ----------------------------------------------------------------------------- > ----------------------------------------------- > The contents of this e-mail and any attachment(s) are confidential and > intended for the named recipient(s) only. 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